Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc14cba1efe07f7d…

MALICIOUS

PDF

36.8 KB Created: 2021-05-21 18:17:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f0a82e467bd2f5c51d9a848c474b771 SHA-1: f00700648b446c5409076269480924d413e49c43 SHA-256: fc14cba1efe07f7d9c0f4589475ec1127adf5cee89feab334e935bd03e37ed03
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristics suggest a lure for free game items or hacks, which is a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-images-free-game-hack In PDF document text
    • http://szekelymozes.ro/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003477.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3477 25692 bytes
SHA-256: 2c9998bcd257c18c27444e26d6b05a3191f1dda357b6d1d6dd0828960a57792e
font_01_sfnt_off00006f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 18116 bytes
SHA-256: 76604dd5740139514d3fd46c2a9d9c838f52c59b348f00b4ee9f07d20b77a693

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